Image to Pencil Sketch in Python

#!/usr/bin/env python

# coding: utf-8

# # Image to Pencil Sketch in Python 

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#...........Convert image to pencil sketch......!

import cv2

#specify the path to image (Loading image image)

image1 = cv2.imread('E:\demo.png')

window_name = 'Original image'

# Displaying the original image 

cv2.imshow(window_name,image1)

# convert the image from one color space to another

grey_img = cv2.cvtColor(image1, cv2.COLOR_BGR2GRAY)

invert = cv2.bitwise_not(grey_img)

#image smoothing

blur = cv2.GaussianBlur(invert, (21, 21), 0)

invertedblur = cv2.bitwise_not(blur)

sketch = cv2.divide(grey_img, invertedblur, scale=256.0)

#save the converted image to specified path

cv2.imwrite("E:\sketch.png", sketch)

 

# Reading an image in default mode

image = cv2.imread("E:\sketch.png")

  

# Window name in which image is displayed

window_name = 'Sketch image'

  

# Displaying the sketch image 

cv2.imshow(window_name, image)

#waits for user to press any key 

#(this is necessary to avoid Python kernel form crashing)

cv2.waitKey(0) 

  

#closing all open windows 

cv2.destroyAllWindows() 

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